scripts/LJCOPY/RMAN/RMAN_DB_Backup_v16.ksh

#!/bin/ksh
# ====================================================================================================
# Title:  RMAN_DB_Backup.ksh
# Author: Richard Wilson
# Date:   03.04.2014
# File Name: RMAN_DB_Backup_v15.ksh
# Description: Uses RMAN to backup Oracle databases.
# Usage:  Usage: RMAN_DB_backup.ksh <ORACLE_SID> <RETENTION_PERIOD> <ARCH|INCR> <LEVEL_0_DAY>
#
# History:
#	17.04.2014	RW	Added %d%m%Y to Tag.
#	24.07.2014	RW	Added email notification.
#	29.07.2014	RW	Added more logic - email after 'backup backup'.
#	26.09.2014	RW	Included parameter Retention Period.
#	03.12.2014	RW	Changed to use R5DISK for UAT, SIT & TRAIN.
#	11.05.2015	RW	Removed Full backups, added Incremental backups.
#	09.02.2016	RW	Added function 'is_RMAN_running'.
#	09.02.2016	RW	Added backup 'NOT BACKED UP 2 TIMES' to capture any missed backupsets.
#	25.04.2017	RW	Added 'is_day_valid'.
# -----------------------------------------------------------------------------------------------------

function is_fs_mounted
{
mount | grep "${BACKUP_FS}" > /dev/null && return 0 || return 1
}

function is_sid_valid
{
if [ `ps -ef | grep -v grep | grep "ora_pmon_${ORACLE_SID}$" | wc -l 2> /dev/null` -eq 0 ]
then
	return 1
else
	return 0
fi
}

function is_day_valid
{
	case "${LEVEL_0_DAY}" in
		MON|TUE|WED|THU|FRI|SAT|SUN|ZZZ) 
			return 0;;
	        *) 	return 1;;
	esac
}

	
function is_RMAN_running
{
return `${ORACLE_HOME}/bin/sqlplus -S / "as sysdba" <<-EOF
        set pagesize 0 feedback off verify off heading off termout off echo off
        select  count(1) from sys.v\\$RMAN_STATUS where status like 'RUNNING%';
EOF`
}

build_cmdfile()
{
# Build RMAN command file.
echo "connect target / "        	                   	                     					>  ${RMAN_CMD_FILE}
echo ""                                                                         					>> ${RMAN_CMD_FILE}
echo "run {"                                                                    					>> ${RMAN_CMD_FILE}
echo "sql 'ALTER SYSTEM SET CONTROL_FILE_RECORD_KEEP_TIME=60 SCOPE=BOTH';"						>> ${RMAN_CMD_FILE}
echo "CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF ${SAVE_DAYS} DAYS;"             					>> ${RMAN_CMD_FILE}
echo "CONFIGURE ARCHIVELOG DELETION POLICY TO BACKED UP 2 TIMES TO DISK APPLIED ON ALL STANDBY;" 			>> ${RMAN_CMD_FILE}
echo "CONFIGURE CONTROLFILE AUTOBACKUP ON;"                                     					>> ${RMAN_CMD_FILE}
echo "CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/snapcf_${ORACLE_SID}.f';"    	>> ${RMAN_CMD_FILE}
echo "CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO COMPRESSED BACKUPSET PARALLELISM 4;"    				>> ${RMAN_CMD_FILE}
# echo "CROSSCHECK backup of database;" 										>> ${RMAN_CMD_FILE}
# echo "CROSSCHECK backup of controlfile;" 										>> ${RMAN_CMD_FILE}
# echo "CROSSCHECK backup of spfile;"                                                             			>> ${RMAN_CMD_FILE}
# echo "CROSSCHECK backup of archivelog all;"                                                     			>> ${RMAN_CMD_FILE}
echo "sql 'ALTER SYSTEM ARCHIVE LOG CURRENT';" 										>> ${RMAN_CMD_FILE}

echo "BACKUP_TYPE is $BACKUP_TYPE"
echo "LEVEL_0_DAY is $LEVEL_0_DAY"

case ${BACKUP_TYPE} in
	"INCR") 
		case `date +%a | tr "[a-z]" "[A-Z]"` in
		${LEVEL_0_DAY}) echo "CROSSCHECK backup of database;"                                                   >> ${RMAN_CMD_FILE}
				echo "CROSSCHECK backup of controlfile;"                                                >> ${RMAN_CMD_FILE}
				echo "CROSSCHECK backup of spfile;"                                                     >> ${RMAN_CMD_FILE}
				echo "CROSSCHECK backup of archivelog all;"                                             >> ${RMAN_CMD_FILE}  
				echo "BACKUP as compressed backupset SECTION SIZE 20G INCREMENTAL LEVEL 0 TAG='L0_${ORACLE_SID}_`date +%d%m%YT%H%M%S`' DATABASE include current CONTROLFILE plus ARCHIVELOG;" >> ${RMAN_CMD_FILE}
                		;;
        		     *)  echo "BACKUP as compressed backupset INCREMENTAL LEVEL 1 TAG='L1_${ORACLE_SID}_`date +%d%m%YT%H%M%S`' DATABASE include current CONTROLFILE plus ARCHIVELOG;" >> ${RMAN_CMD_FILE}
                		;;
		esac;;
	"ARCH")
		echo "backup as compressed backupset TAG='Arch_${ORACLE_SID}_`date +%d%m%YT%H%M%S`' archivelog all;" >> ${RMAN_CMD_FILE} 
		;;
esac

echo "delete noprompt archivelog all backed up 2 times to DEVICE TYPE disk completed before 'sysdate-1';" >> ${RMAN_CMD_FILE}

if is_fs_mounted
then
        /bin/find ${BACKUP_FS}/${ORACLE_SID} -type f -empty -delete
        echo "backup backupset all NOT BACKED UP 2 TIMES format '${BACKUP_FS}/${ORACLE_SID}/%U';" >> ${RMAN_CMD_FILE}
else
        echo -e "WARNING: Backup filesystem not mounted....."
fi

echo "}"                                                                                        >> ${RMAN_CMD_FILE}
echo "exit"                                                                                     >> ${RMAN_CMD_FILE}
}

# ==================================================================================================================================================================================================================
export ORACLE_SID=`echo ${1} | tr "[a-z]" "[A-Z]"`
export SAVE_DAYS=${2}
export BACKUP_TYPE=`echo ${3} | tr "[a-z]" "[A-Z]"`
export LEVEL_0_DAY=`echo ${4:-ZZZ} | tr "[a-z]" "[A-Z]"`
export ORACLE_HOME="/u01/app/oracle/product/11.2.0/dbhome_1"
export SCRIPT_DIR="/home/oracle/Scripts/RMAN"

# export RMAN_CMD_FILE=${SCRIPT_DIR}/${ORACLE_SID}_rman_cmds.rman
export RMAN_CMD_FILE=${SCRIPT_DIR}/${ORACLE_SID}_rman_cmds_v15.rman

export BACKUP_FS="/backups"
export BACKUP_LOG=${SCRIPT_DIR}/logs/${ORACLE_SID}_backup_log.txt
echo "LEVEL_0_DAY = $LEVEL_0_DAY"


is_RMAN_running
result=$?
result1=`echo ${result} | sed 's/[[:space:]]//g'`
if [ ${result1} -eq 0 ]
then
	ORACLE_SID=`echo ${ORACLE_SID} | tr "[a-z]" "[A-Z]"`
	if is_sid_valid
	then
		if [[ "${2}" = +([0-9]) ]]
		then
			if [[ "${BACKUP_TYPE}" == "ARCH" || "${3}" == "INCR" ]]
			then
				if is_day_valid
				then		
					build_cmdfile
					echo ${ORACLE_HOME}/bin/rman cmdfile=${RMAN_CMD_FILE} log=${SCRIPT_DIR}/logs/${ORACLE_SID}_RMAN_${BACKUP_TYPE}_backup.log
					if [ $? = 0 ]
                                        then
                                               	echo -e "INFO: ${ORACLE_SID} Database Backup Successful." >>  ${BACKUP_LOG}
                                        else
                                               	echo -e "ERROR: ${ORACLE_SID} Database Backup Failed." >>  ${BACKUP_LOG}
                                        fi
				else
					echo -e "ERROR: Parameter 4: Invalid Backup Day entered."
				fi
			else
				echo -e "ERROR: Parameter 3: Backup Type must be INCR or ARCH."
                        fi
		else
			echo -e "ERROR: Parameter 2: Retention Period must be numeric, in days"
		fi 
	else
	 	echo -e "ERROR: Parameter 1: Database '${ORACLE_SID}' does not exist."
	fi
else
       	echo -e "\nINFO: RMAN is already running\n"
fi

# End of File